Question

1. Fill in the blanks :
(a) A triangle has___vertices.
angles and______sides.
(b) Each angle of an equilateral triangle measures____
(c) If two sides of a triangle are equal to each other, then the triangle is called a/an_______
triangle
(d) A triangle is called an acute-angled triangle if all of its angles are______
(e) A triangle is called a right-angled if one of its angles is a
_____angle.
State True or False :
(a) A triangle can have two right angles.
(b) Every equilateral triangle is an isosceles triangle,
(c) A scalene triangle has three sides of different lengths.
(d) A triangle cannot have more than one obtuse angle.
(e) A triangle can have each angle less than 60°.​

Answer 1

Answer:

a. 3

b.60 degree

c.isoceles

d.less than 90 degree

e.90 degree

Answer 2

Answer:

1.

a) 3

b) 60°

c) Isosceles triangle

d) >90° (less than 90°)

e) measures 90°

2.

a) False

b) False

c) True

d) True

e) False